Prerequisite Knowledge

What you'll learn

Learn how Gilt uses deep learning to automatically detect similar products and identify facets in dresses

Description

In the fashion industry, many tasks require human-level cognitive skills, such as detecting similar products or identifying facets in products like sleeve length or silhouette types in dresses. Pau Carré explains how Gilt is reshaping the fashion industry by leveraging the power of deep learning and GPUs to address these challenges.

Gilt is building automated faceting systems to detect dresses based on their silhouette, neckline, sleeve type, and occasion. On top of that, it is also developing systems to detect dress similarity, which can be useful for product recommendations. When integrated with automated faceting, customers will be able to find similar products with different facets. (For instance, a customer might be very interested in a particular dress but wants a different neckline or sleeve length.)

Topics include:

Dress faceting: Gilt uses image classification for dress faceting using Deep Residual Networks. This approach focuses on generating a high-quality dataset using a feedback loop. The initial dataset is generated from a database query or scraping websites. Then a neural network is trained and used to identify the most likely mistagged images in the dataset. They are then retagged using fashion experts and Amazon Mechanical Turk. The network is then retrained with the corrected dataset.

Dress similarity: Gilt reimplemented TiefVision using TensorFlow, which uses transfer learning to reuse an already trained GoogleNet to extract embeddings. These embeddings are high-dimensional vectors that identify the product’s image. Two very similar images should have a very similar embedding vector. The embeddings are then stored in Approximate Nearest Neighbours index, an index that allows fast retrieval of similar embeddings.

Pau Carré

Gilt

Pau Carré is a deep learning software engineer at Gilt. Pau has 10 years of experience encompassing software security, IT management, microwave networks profiling, quality engineering, and deep learning and functional programming for the fashion industry. Over his career, he has lived and worked in cosmopolitan Barcelona, paradisiac Mallorca, and magnificent Vienna and is now based in welcoming Dublin.